<!DOCTYPE html>
<html lang="en">

	<head>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
		<title>app</title>
		<style>
			*{
				margin: 0;
				padding: 0;
			}
			body{
				font-size: 12px;
			}
		</style>
	</head>

	<body>
		<div id="app"></div>
		<script>
			window.onresize = function() {
				setHtmlFz();
			}
			setHtmlFz();
			function setHtmlFz() {
				var w = window.screen.availWidth
//				document.html.fontSize = w/6.4+'px'
        document.querySelector("html").style.fontSize = w/6.4+'px'
			}
		</script>
		<script src="./dist/build.js"></script>
	</body>

</html>